OpenLearn | open.ac.uk

腾讯文档-官方网站-支持多人在线编辑Word、Excel和PPT文档

OpenLearning is a social online learning and MOOC platform that allows universities, colleges and educators to create, design, deliver, market online and blended courses.

臺大開放式課程 (NTU OpenCourseWare)

bilibili是国内知名的视频弹幕网站，这里有及时的动漫新番，活跃的ACG氛围，有创意的Up主。大家可以在这里找到许多欢乐。

GitHub is where over 100 million developers shape the future of software, together. Contribute to the open source community, manage your Git repositories, review code like a pro, track bugs and features, power your CI/CD and DevOps workflows, and secure code before you commit it.